Process of dyeing.



J. H. SKITT.

PROCESS OF DYEING. APPLICATION FILED NOV. 25, 1912.

Patented July 15, 1913.

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WITNESSES INVENTOR amm] 16W AA wMA/m AMES H. SKI'IT, or PHILADELPHIA,PENNSYLVANIA, AssIGNoR TO ROBERT P. SMITI-I oeaaao.

AND GEORGE E. DRUM, COPARTNERS TRADINGi-UNDER THE FIRM-NAME I DRUM ANDCOMPANY, OF PHILADELPHIA, PENNSYLVANIA.

or Y SMITH,

I PRocEss or LYEINGI j I Specification'of Letters Patent. I 1 Patent dJ15,1913 Application filed November 25; 1912. Serial N6L7sa25s.

To alz whomit concern .Be it known that 1, JAMES H. SNITT, a

subject. of the King of'England, residingat Philadelphia, in the countyof Philadelphia and State of Pennsylvania,have invented cert-am new anduseful Improvements in Processes of Dyeing, of'which the follow dyeliquor in a yat at a point nearthe surface of the latter and in moving,the goods to,.be dyed av circular. path around the point of agitationandinto and out of; the dye liquor in a manner tocause the liquor topass first in one direction through the goodsiand then, in a reversedirection so as to thoroughly penetrate and impregnate the goods withthe dye liquor, at the same time without the usual. knotting or 1 injuring of the goods. Other objects and stepswill. be more'fully pointedout-in the followinggdescription and with reference to "the accompanyingdrawingfoi ming a part of vthis specification. The apparatus employed incarrying, out this process is similar to that of co-pending applicationSerial Number-,657\ ,0 8 t, and as seen in the drawing of this invention0on sists in .a vat 1 which contains ,the', dye liquor: ,The bottom 2 ofthe vat issemicircular in .CI-OSSJSQCtlOII and between this bottom andthe peripheral wall 3 of the cars rier for the goods is leftsufiicientspacezfor free circulation of the dyeliquor. The carsuitably connected,tocircular .imperforate end walls 5 and.imperfora te radialparth tionsv6. .The latter divides the carrier into compartments A,B, O,.D,-E, andF. The end walls 5 of the carrier are journaled-on a shaft 6 and anysuitable means-"may be employed for rotating ,thef'carrier thereon inthe direction indicated by arrow Z.

Radiating from the shaft 6 are imperforate circulating blades 7, whichwith imperforate end walls 8 constitute the agitating or circulatingmeans. Any means may be provided for rotating the shaft and agitator inthe direction indicated by the arrow. X; that is, in a direction reverseto that in which the carrier rotates.

:Inlcarrying out the processfthe carrier and ag tatorvalre rotated asrespectively indicatedbyfthe arrows Z and X the vat being previouslyfilled 'with' dye or other liquor. The goods, tobe dyed are compactedinto the compartments A, 13,0, 1), E and F,

but leftloos'e enough nqt ito interfere with the ,free, passagetherethrough of the .dye

liquor. VVhenthe compartment A is at the zone Gr, the compartments'F, Eand D are respectively at the zones L, K, andJ, and

all submerged or-partly so in the dye liquor,

The agitators 7 rotating in 'the direction of the arrow X, draw the dyeliquor through the compartment A from the erterior thereof to the centerof the carrier as indicated by arrows and from the center, tl1eagitators draw the .dye liquor through the compartment, I) to theexterior-of the carrier-as indicated by ,arrows. The perforated walls ofthe oompa-rtments permit, this circulation. Like wise, the agitatorsdraw' the dye; liquor through the compartment F from the exteridr of thecarrierto the center of the carrier; and ,force the dyeliquon froni thecenter of the carrier through'the compart ment E to the exteriorofthecarriera' This circulation of the dye liquor by the agitator isconfined to the paths indicated,by the end walls; and partitions, whichinthemain should. be imperforater It will be' observed that thecirculation of thejdyejli 'quor is most perfect when one of thepartitions Gb'ecomeslocatedin the vicinity of' amedial line between thezones L and 5K, as illustrated, and when soflocated,the partition offers.an obstruction around which the dye liquoris compelled to flow therebymaintaining a continuous circulation of the liquor from left toright inthe'upper por- -tion-o f theyat. and fromrightto left along the, bottom,wall. 2 of the vat.

liquorifrom the compartments A, 13,0 and D or the portions thereof notsubmerged drains into the central chamber of the carrier, except for asmall portion that escapes through the exterior walls of the same. Asthe carrier slowly rot-ates to bring the compartments F, E, D, and Cadjacent the zones G, L, K and J respectively, the dye liquor circulatesfrom the carrier exterior through the compartments F and E to the Thedye carrier center, and from the carrier center 45 tion, in passing thegoods to be dyed through tending to break the direct flow at certain isclaimed as new and desired to be secured points, but in general thecirculation of the dye liquor will'be as described, and the bulk of theliquor will take the paths of flow indicated.

At the zones L and G, the dye. flows throu h the goods in onecompartment in one dlrection. This dye liquorthen drains from the saidcompartment as the latter leaves the vat, and as the com artment isagain submerged at the zones J and K, the dye liquoragain flows throughthe goods, but in a reverse direction. The carrier turns slowly so asnot to roughen or tangle the goods in the compartments and to notinterfere with the described circulation of the dye liquor. On everyrevolution of the carrier,

the dye liquor passes twice through the goods in the compartments, oncein one direction and then in a reverse direction.

.. ,Of course it will be understood that the invention is not restrictedto dyeing, but is applicable generally to impregnating such as washing,coating or otherwise. The mvention is particularly adapted totreatingknit' goods, as stockings, but may beem- .ployed for treatingany other goods or articles.

Having fully described the invention, what by Letters Patent is 1. Aprocess of dyeing, consisting in agitating the dye li nor to producecurrents thereof toward an from the point of agitasaid currents to-causethe currents to pass first in one direction and then in an oppo sitedirection through the goods, and in obstructing the flow of the liquorbetween the point of agitation and a point adjacent the outerlimittherefrom in the path of travel of the goods. I i

2. A process of dyeing, consisting in agi tating the dye 1i nor toproduce currents thereof toward an ,from the pointof agitation, inrotating the goods around the point of agitation to cause the currentsto pass first in one direction and then in an opposite direction throughthe goods, and in obstructing the flow of the liquor between a pointadjacent the point of agitation. and a point adjacent the outer limittherefrom in the path of travel of the goods.

3. A process of dyeing, consisting in agitating the dye liquor toproduce currents thereof toward and from the point of agitation, inrotating the goods around the point of agitation into and out of theliquor to cause the currents to pass first in one direction and then inan opposite direction in one direction and then in an opposite directionthrough the goods.

5. A process of dyeing, consisting in agitating the dye liquor toproduce currents thereof toward and from the point of agitation, inimmersing the goods-in the liquor on one side of the point of agitationand withdrawing them on the opposite side thereof thereby causing thecurrents to pass in one direction and then in an opposite directionthrough the oods, the direction of agitation being opposite to that oftravel of .the goods.

6. A process of dyeing, consisting in agitating the dye liquor toproduce currents thereof toward and from the point of agitation, insurroundingthe point of agitation with the goods to be dyed, separatingthe goods into lots in a manner to prevent flow of the liquor directlyfrom one lot into the other, and in moving the goods about the point ofagitation to cause the lots treated by one of said currents to besubjected to the other thereof. y

In testimony whereof I afiix my signature in presence of two witnesses.

JAMES H. SKITT.

Witnesses: v

MARGARET CRAIG,

ELLEN W. NEILSON.'

